EP0410312B1 - Distributeur centrifuge de matériaux granulaires, notamment d'engrais - Google Patents

Distributeur centrifuge de matériaux granulaires, notamment d'engrais Download PDF

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Publication number
EP0410312B1
EP0410312B1 EP90113896A EP90113896A EP0410312B1 EP 0410312 B1 EP0410312 B1 EP 0410312B1 EP 90113896 A EP90113896 A EP 90113896A EP 90113896 A EP90113896 A EP 90113896A EP 0410312 B1 EP0410312 B1 EP 0410312B1
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EP
European Patent Office
Prior art keywords
centrifugal
disk
spreading
spreader according
centrifugal spreader
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Revoked
Application number
EP90113896A
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German (de)
English (en)
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EP0410312A1 (fr
Inventor
Norbert Dipl.-Ing. 1Rauch
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RAUCH Landmaschinenfabrik GmbH
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RAUCH Landmaschinenfabrik GmbH
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/006—Regulating or dosing devices
    • A01C17/008—Devices controlling the quantity or the distribution pattern
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/006—Regulating or dosing devices

Definitions

  • the invention relates to a centrifugal broadcaster according to the preamble of claim 1, which is known from EP-A-0 292 893.
  • Centrifugal spreaders of the abovementioned construction are generally operated with two centrifugal disks in order to obtain a spread pattern over the spreading width, which leads to a uniform distribution of the fertilizer over the working width when driving on the connection.
  • Such an even distribution is achieved in particular when the scatter pattern is formed flat triangular, so that when driving through connection overlap of the spreading patterns results in a linear fertilizer distribution transverse to the direction of travel.
  • border spreading i.e. H. when driving in the last stroke, the spread pattern generated by the centrifugal disc facing the field boundary must be designed differently than the spread pattern generated by the centrifugal disc facing away from the field boundary, since it is no longer possible to drive at the border, an overlap of two scatter patterns therefore no longer takes place.
  • special border spreading discs are used, which generate a steep-sided spread pattern, i. H. a scatter pattern that is straight and approximately perpendicular to the direction of travel over most of the remaining width and falls steeply towards the border.
  • the centrifugal discs are exchangeably arranged on their drive shaft (EP-A-0 292 873).
  • Each farmer usually works with only one working width, which is determined by the working width of the seed drill in the tramline system.
  • the farmer needs a set of centrifugal discs and at least one border spreading disc for normal soil fertilization. Since such a border spreading disc produces a satisfactory spread pattern only for a certain border spread width - hereinafter referred to simply as the spread width - in contrast to the working width - and as a rule different conditions exist at the field border in an agricultural operation for the individual fields, the farmer generally requires Several border spreading discs in order to be able to record different spreading widths when spreading borders with a uniformly good spread pattern.
  • a centrifugal spreader must also offer the possibility of both soil fertilization and late fertilization, i. H. fertilizing the plants that have already grown up. This is usually done in that the centrifugal spreader picked up by the three-point linkage of the tractor is tilted from the horizontal position of the centrifugal disks for soil fertilization into an inclined position which rises towards the rear. The tipping conditions on the centrifugal disc change due to the tilting. For border spreading this means that a different border spreading disc must be used for late fertilization than for normal fertilization. In summary, this means that the farmer needs at least one pair of border spreading discs, one for soil fertilization and one for late fertilization, and one or more further sets of border spreading discs for different spreading widths at the border.
  • centrifugal spreaders This requires a corresponding cost and measures to avoid confusion.
  • the manufacturer of centrifugal spreaders this means that in his machine program he not only has to carry the different centrifugal discs that are necessary for different working widths, but also the aforementioned number of boundary spreading discs.
  • the invention is based on the object of designing a centrifugal spreader in such a way that multiple boundary spreading disks are not required for border spreading and two-part vanes on the centrifugal disk are avoided.
  • the invention is based on the knowledge that not only the spreading width of the centrifugal disc, but also the spreading pattern can be changed by shifting the drop point, in particular in a form that has hitherto only been possible by means of different boundary spreading discs or by discs with adjustable, two-part throwing vanes was possible.
  • the drop point on the boundary spreading disc is shifted in the direction of rotation compared to the normal disc.
  • the invention furthermore makes it possible to achieve the desired boundary spread pattern both in normal fertilization and in late fertilization by setting the drop point in different positions.
  • the invention thus offers the possibility of being able to work with different border spreading widths with a single border spreading disc or with a left and a right border spreading disc in both types of fertilization - normal fertilization and late fertilization - and under different circumstances of the field boundaries of a farm. It is therefore only necessary to change the disc for border spreading in all work that occurs. As a result, the costs for the farmer are reduced and warehousing is considerably simplified. For the manufacturer, this means a significant reduction in its range of products, lower manufacturing costs and fewer problems with warehousing and goods distribution.
  • the drop point on the boundary spreading disc can be adjusted depending on the type of fertilizer.
  • the invention thus takes into account the fact that the spreading width, including that of the boundary spreading disc, and the spreading pattern depend on the type of fertilizer being processed.
  • the spreading pattern of the border spreading disc can also be influence the position of the wings on the border spreading disc. It is provided that at least one wing on the boundary spreading disc is at least less reset than the wings on the normal disc, at least for larger spreading widths. This measure can also be provided for all wings of the border spreading disc.
  • resetting is to be understood - in contrast to advancing - an out-of-radial arrangement of the wing such that the outer end of the wing runs in relation to the inner end when viewed in the direction of rotation.
  • both of the aforementioned measures are implemented simultaneously on the boundary spreading disc, namely the other arrangement of the drop point and the wings in order to cover the entire range of variation (boundary spreading width, type of fertilizer, spreading profile) with a single boundary spreading disc.
  • a further advantageous embodiment is characterized in that the position of the wings on the border spreading disc is adjustable to change their reset, it being provided in particular that the position of the wings on the border spreading disc is adjustable in dependence on the spreading width in such a way that the reset at the smaller spread is larger than the larger spread.
  • the uniformity of the spread pattern can be further favorably influenced by the fact that the vanes on the boundary spreading disc can be set differently from one another.
  • the further measure takes into account the special conditions in border spreading, namely the smaller spreading width, that the wings of the border spreading disc are shorter than those of the normal disc.
  • the farmer therefore usually manages with a single border spreading disc, which offers the variation options provided according to the invention. This is especially true when the speed of the centrifugal discs is variable, which is possible without problems, for example with a hydraulic drive, and with which the working width can be changed over a wide range. At most, for extremely large spreading widths of, for example, 30 m or more or for extremely small spreading widths of, for example, 12 m or less, at least one wing of the boundary spreading disc should be interchangeable, in the former case against a longer one and in the second case against a shorter one.
  • the relocation of the drop point can be carried out in various ways, and known designs can also be adopted, for example by adjusting the base having the outlet opening or a guide element arranged between the outlet opening and the centrifugal disc.
  • the drop point can be shifted relative to the outlet opening by adjusting the centrifugal disc.
  • the drop point can be changed in that the centrifugal discs are adjustable by means of the carrier.
  • the adjustment can be done by swiveling or moving the carrier.
  • the drop point can also be adjusted within the adjustment range can also be shifted depending on the type of fertilizer.
  • the aforementioned adjustment options can each be provided for on their own, but can also be combined with one another in order to cover the largest possible area with the smallest travel ranges.
  • the boundary spreading disc has for each wing at least two receptacles which are arranged outside the radial, one of which is arranged close to the axis, the other remote from the axis, and one of which the positioning of the wing in different positions allowed.
  • the design is preferably such that the receptacle has predetermined positions for the adjustment of the wing in different positions, so that the wings can be attached repeatedly in the same position. If necessary, the positions can be marked on the underside of the border spreading disc and these marked positions can be specified in a table of operating instructions for different types of fertilizer and spreading width. The table can also contain information about the drop points.
  • a simple and advantageous embodiment draws are characterized in that the receptacles are designed as holes in the boundary spreading disc and that the wings in the holes engaging pins with fasteners on the underside of the boundary spreading disc, expediently the near-axis reception of a single hole, the off-axis reception of several on a circular arc holes are formed around the near-axis hole.
  • the centrifugal spreader shown in the drawing has a fertilizer hopper 1 which extends with its longitudinal axis transversely to the direction of travel shown in FIG. 2 and has a width which corresponds to the total width permitted for road transport. It consists of a substantially rectangular upper part 2 and a lower part 3, the side walls 4, front wall 5 and rear wall 6 are inclined inwards. The front wall 5 and rear wall 6 run into a trough-shaped bottom (see FIG. 3). Corresponding attachments can optionally be placed on the open end face of the rectangular upper part 2 in order to increase the capacity of the storage container 1.
  • Sieve frames 13 are inserted into the upper part 2 and a stiffening perforated plate is inserted in the middle.
  • the centrifugal broadcaster also has a support frame 7, which essentially consists of two vertical L-shaped beams 8 (FIG. 3) and a crossbar 10 connecting their lower legs, the latter projecting outward beyond the legs.
  • the L-shaped supports 8 of the frame 7 are arranged within the front vertical alignment of the container 1.
  • the container 1 can be drawn inwards in the region of its upper part 2 on the front wall 5. Otherwise, the larger part of the L-shaped carrier 8 below the inclined front wall 5 of the container 1. In this way, the connection points 14 for the upper link and the connection points 15 for the lower link sit as close as possible to the central longitudinal plane of the container, which results in a favorable center of gravity.
  • a transverse conveyor 16 is arranged directly in the trough-shaped bottom, which in the exemplary embodiment shown consists of a continuous shaft 17 and a screw spiral 18 carried at a distance from it.
  • the cross conveyor 16 is driven on one side by means of a hydraulic motor 19 via a chain wheel 20 and is supported in the middle region at 21 on the container.
  • the trough-shaped bottom has flat sections 22 in the region of its outer ends (see FIG. 3), in which the discharge openings are provided.
  • the cross conveyor In the area of these discharge openings 24, the cross conveyor has no conveying elements, but only circulating elements which ensure that the material lying above the discharge opening is no longer conveyed to the outside, but is only circulated.
  • centrifugal disc 25, 26 is arranged below each of the two outer discharge openings, the axis 27, 28 of which is offset with respect to the discharge opening, so that the fertilizer leaving the discharge opening strikes the centrifugal discs 25, 26 at a distance from the axis.
  • the centrifugal disks 25, 26 have a number of centrifugal blades 29 in a conventional manner. Otherwise, the centrifugal disks 25, 26 are seated on swivel arms 30 which are mounted on vertical axes 31.
  • centrifugal disc 25 can be pivoted forwards in the direction of travel 2
  • the other centrifugal disc 26 can be pivoted backwards against the direction of travel, but preferably both centrifugal discs are only towards pivotable at the rear, as indicated in FIG. 2 for the centrifugal disc 25 shown on the right.
  • the centrifugal disks 25, 26 are each driven by a hydraulic motor 32, each of which is attached to the outer end of the swivel arms 30.
  • the centrifugal disks sit directly on the upward-pointing output shaft of the hydraulic motor 32 and are supplied by a pump (not shown) via the hydraulic lines 35, 36.
  • the hydraulic lines 35, 36 are preferably installed protected in the swivel arms 30.
  • the centrifugal disc 26 is shown with solid lines in the operating position and with dash-dotted lines in the pivoted-out position - similar to the illustration in FIG. 2 - for taking a scattering sample.
  • the outlet opening 24 is indicated, which opens offset next to the axis of rotation 27 of the centrifugal disk 26.
  • An actuating lever 12 is mounted on the swivel arm 30, by means of which the centrifugal disc 26 can be swiveled from the operating position into the position that releases the outlet opening 24.
  • the swivel arm 30 and thus the slinger 26 is locked at the stop 11.
  • the centrifugal disc can also be locked at a stop in the disengaged position, as is indicated by dash-dotted lines.
  • Figure 3 also shows the lower legs 9 of the L-shaped carrier 8 (Figure 1) of the support frame, which are connected at their rear free ends by the crossbar 10.
  • the crossbar 10 has a lower leg 9 on the outside projecting section 37, which forms part of a protective frame 38, which is completed by a further leg 39 extending in the direction of travel and a leg 40 parallel to the section 37 and by the lower leg 9 of the L-shaped carrier.
  • the swivel arm 30 is arranged and pivotable within the protective frame 38.
  • the vertical pivot bearing 31 is seated on the leg 40 of the protective frame 38.
  • FIG. 4 shows the hydraulic motor 32 driving the centrifugal disc 26, on the output shaft of which the centrifugal disc 26 is placed.
  • the hydraulic motor 32 and thus also the outer end of the swivel arm 30 is protected at the bottom by a deflector blade 42 which is formed by a flat U-profile and which engages under the hydraulic motor 32 not only from below but also from the side.
  • the deflector blade 42 is seated on two parallel levers 43 which are pivotably mounted on an axis 44 lying approximately in the direction of travel.
  • the pivot axis 44 is formed, for example, by two bolts, one of which is arranged on the outer section 37 of the crossbar 10, the other on the parallel leg 40 of the protective frame 38 (see FIG. 3).
  • a spring 45 which is attached to the protective frame 38 at 46, engages on the lever 43, the attachment point 46 being located approximately above the pivot axis 44. In this way, the deflector blade 42 is held in the functional position (FIG. 4, right) under the action of the spring 45. In order to be able to pivot the deflector blade inwards from this position, a handle 47 is attached to its end. When pivoting, the spring 45 runs over the pivot axis 44 into the position shown on the left, in which it holds the deflector blade 42 in its pivoted position.
  • the swivel arm 30 with the centrifugal disc 26 can be shown in dash-dotted lines in FIG Position are pivoted so that the space below the outlet opening 24 is free and the fertilizer jet can emerge unhindered downward and also a collecting vessel below the outlet opening 24 can be set up or hung.
  • the hydraulic motor 32 does not protrude below the lower edge of the protective frame 38.
  • the deflector blade 42 lies approximately at the level of the lower edge of the protective frame 38 or higher.
  • a protective ring 48 which is concentric with the centrifugal disc 26 is also attached to the swivel arm 30.
  • a protective ring 49 of the same size, likewise in a concentric arrangement with the centrifugal disk 26, is mounted directly above the centrifuge disk on the storage container, so that effective accident protection against touching the centrifugal disk 26 is formed.
  • FIG. 3 shows an operating position of the centrifugal disc 26, for example for normal fertilization.
  • the drop point is located below the outlet opening indicated by 24 near the axis 27 or the center of the disk 26.
  • the slinger 26 can be pivoted continuously by means of the swivel arm 30, so that the drop point is approximately on the broken line 50 on the disk opposite to the Direction of rotation 51 and at the same time migrates to the outside.
  • the stop 11 is designed as a locking pin which is surrounded by a locking bar 52 with a U-shaped cross section.
  • the bolt 52 sits on one arm of the two-armed actuating lever 12, which is mounted at 53 on the swivel arm 30 and is provided with a handle 54 on its other arm.
  • the locking pin 11 sits on a plate 55 which is continuously adjustable on the side rail 39 of the protective frame 38.
  • a plate 55 which is continuously adjustable on the side rail 39 of the protective frame 38.
  • two aligned slots 56 are arranged in which the guide plate 55 is guided by means of bolts.
  • the bolts continue to interact with manually operated clamping nuts or are in turn designed as clamping screws which are provided with large-area rotary handles 57 or toggles.
  • a millimeter-precise adjustment of the guide plate 55 or the locking pin 11 is possible by means of the adjusting spindle 58 with a turning handle 59.
  • the set or to be set operating position can be read from a scale 60 arranged on the frame leg 39, which runs along an elongated hole, which in turn is engaged by an indicator 61 on the guide plate 55.
  • the adjusting lever 12 is pivoted about the vertical bearing 53 by means of the handle 54.
  • the operator can be supported by hand on the bracket 62 on the protective ring 48.
  • the locking is opened against the force of the tension spring 63, which is stretched between the swivel arm 30 and the end of the two-armed actuating lever 12 opposite the handle 54 and which holds the bolt 52 in the operating position on the locking pin 11.
  • the actuating lever 12 is actuated, the bolt 52 is released from the bolt pin 11.
  • the swivel arm 30 can be swiveled into the dash-dot position of the centrifugal disc.
  • the guide plate 55 with the locking pin 11 can then be moved into the desired new operating position by means of the spindle 58, for example for border spreading.
  • the centrifugal disc is pivoted back with the swivel arm and the bolt 52 is pushed over the bolt pin 11 again.
  • the centrifugal disc 26 can be pivoted into the release position shown in dash-dot lines, for example in order to make a spreading test or to replace the centrifugal disc for normal fertilization with the boundary spreading disc.
  • the setting lever 12 interacts with a fixed locking pin 64 on the rear frame leg 37.
  • the adjusting lever 12 is provided at the end opposite the handle 54 with a hook-like bolt 65, which is arranged outside in the embodiment shown, which results in the advantage that both locking pins 11 and 64 can be arranged on the frame legs on the inside.
  • the boundary spreading disc 66 has an upper leg 67 which consists of a rising section 68 and a downwardly inclined section 69, so that the fertilizer coming from the outlet 24 onto the boundary spreading disc 66 is deflected more downward.
  • FIG. 7 shows a projection of the outlet opening 24 onto a centrifugal disc 26. Furthermore, the edge 74 of an adjustable closure which passes over the outlet opening 24 is shown in several positions. In the position that is closest to the center of the centrifugal disc, the outlet opening has the smallest free cross section. By moving the slide edge 74 outwards, the outlet cross section is enlarged. The center of gravity of the respective free cross-section moves during the opening movement on line 75, that is to say primarily from the inside to the outside and also to a small extent counter to the direction of rotation. The direction of travel of the tractor during spreading is indicated in FIGS. 7 and 8 by the directional arrow 76.
  • FIG. 8 shows a further preferred embodiment of the boundary spreading disc 66 with two vanes 67, which are set back with respect to the direction of rotation 76, i. H. the outer end of the wing follows the inner end; the wings, as can be seen in FIG. 9, are arranged on the border spreading disc out of radial direction.
  • the provision of the vanes 67 on the boundary lens is less than that of the vanes 29 on the normal disk 25 or 26 ( Figures 1, 4 and 5).
  • the wings have pins on their underside, e.g. B. threaded pin, by means of which they are in recordings on the Intervene border lens and, for. B. by means of nuts on the underside of the border lens.
  • the provision of the wing is greatest when it is fastened in hole C and lowest when it is fastened in hole G, the range of variation being increased by different positioning of the wings.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizing (AREA)

Claims (25)

  1. Epandeur centrifuge pour matériau d'épandage susceptible de s'écouler, notamment de l'engrais, comprenant un réservoir de stockage (1) d'engrais présentant au moins deux sorties d'écoulement (24) réglables et un disque d'épandage normal (25,26,70) équipé d'ailettes (29) disposé sous une sortie d'écoulement, monté amovible sur son arbre de transmission, ainsi qu'un disque d'épandage en lisière (66) de conformation différente de celle du disque normal à figure d'épandage à flanc abrupt, le disque d'épandage en lisière et le disque d'épandage normal pouvant être remplacés l'un par l'autre, le point de déversement déterminant la position relative entre la sortie d'écoulement (24) et le disque d'épandage (25,26,66,70) étant réglable tant pour le disque d'épandage normal que pour le disque d'épandage en lisière (66), caractérisé en ce que pour le disque d'épandage en lisière (66), le point de déversement est décalé dans le sens de rotation du disque par rapport au point de déversement (72) du disque d'épandage normal qui est remplacé par le disque d'épandage en lisière pour la formation d'une figure d'épandage à flanc abrupt.
  2. Epandeur centrifuge selon la revendication 1, caractérisé en ce que le point de déversement sur le disque d'épandage en lisière (66) est également réglable pour modifier la largeur d'épandage du disque d'épandage en lisière.
  3. Epandeur centrifuge selon l'une des revendications 1 ou 2, caractérisé en ce que le point de déversement sur le disque d'épandage en lisière (66) est réglable de telle façon que pour une largeur d'épandage importante, il se trouve décalé davantage dans le sens de rotation que pour une petite largeur d'épandage.
  4. Epandeur centrifuge selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le point de déversement sur le disque d'épandage en lisière (66) est réglable en fonction du type d'engrais.
  5. Epandeur centrifuge selon l'une quelconque des revendications 1 à 4, caractérisé en ce que pour l'utilisation d'engrais en grains de gros calibre et/ou à surface lisse, contrairement à ce qui est le cas pour l'utilisation d'engrais en grains de petite granulométrie et/ou à surface rugueuse, le point de déversement sur le disque d'épandage en lisière (66) est décalé inversement au sens de rotation.
  6. Epandeur centrifuge selon l'une quelconque des revendications 1 à 5, caractérisé en ce que pour l'utilisation de brisures d'engrais anguleuses, contrairement à l'utilisation d'engrais en granulés, le point de déversement sur le disque d'épandage en lisière (66) est décalé inversement au sens de rotation.
  7. Epandeur centrifuge selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, au moins pour les largeurs d'épandage importantes, une ailette (67) au moins du disque d'épandage en lisière (66) est moins décalée que les ailettes du disque normal.
  8. Epandeur centrifuge selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les ailettes (67) du disque d'épandage en lisière (66) sont moins décalées que celles du disque normal, au moins pour les largeurs d'épandage importantes.
  9. Epandeur centrifuge selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la position des ailettes (67) sur le disque d'épandage en lisière (66) est réglable pour modifier leur décalage.
  10. Epandeur centrifuge selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la position des ailettes (67) du disque d'épandage (66) est réglable en fonction de la largeur d'épandage de façon que le décalage soit plus important dans le cas de petites largeurs d'épandage que dans le cas de grandes largeurs d'épandage.
  11. Epandeur centrifuge selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les ailettes (67) du disque d'épandage en lisière (66) sont réglables différemment les unes par rapport aux autres.
  12. Epandeur centrifuge selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les ailettes (67) du disque d'épandage en lisière (66) sont plus courtes que celles du disque normal.
  13. Epandeur centrifuge selon l'une quelconque des revendications 1 à 12, caractérisé en ce que pour des largeurs d'épandage extrêmement grandes égales ou supérieures à 30 mètres, une au moins des ailettes (67) du disque d'épandage en lisière (66) peut être remplacée par une ailette plus longue.
  14. Epandeur centrifuge selon l'une quelconque des revendications 1 à 13, caractérisé en ce que pour des largeurs d'épandage extrêmement petites égales ou inférieures à 12 mètres, une au moins des ailettes (67) du disque d'épandage en lisière (66) peut être remplacée par une ailette plus courte.
  15. Epandeur centrifuge selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le point de déversement peut être décalé par réglage du fond présentant l'ouverture d'écoulement.
  16. Epandeur centrifuge selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le point de déversement peut être décalé par réglage d'un organe de guidage pour le produit d'épandage.
  17. Epandeur centrifuge selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le point de déversement est mobile par réglage du disque d'épandage (26) par rapport à la sortie d'écoulement (24).
  18. Epandeur centrifuge selon la revendication 17 comportant des disques d'épandage à entraînement hydraulique et portés par un support, caractérisé en ce que les disques d'épandage (26) sont réglables au moyen du support (30).
  19. Epandeur centrifuge selon la revendication 17 ou 18, caractérisé en ce que le support (30) du disque d'épandage (26) est monté pivotant.
  20. Epandeur centrifuge selon la revendication 17 ou 18, caractérisé en ce que le support du disque d'épandage (26) est monté coulissant.
  21. Epandeur centrifuge selon l'une quelconque des revendications 1 à 6 et 15 à 20 comportant des sorties d'écoulement, dont la section libre est réglable au moyen d'une fermeture du type à coulisseau ou rideau, caractérisé en ce que la sortie d'écoulement (24) et l'arête (74) de la fermeture délimitant une partie de la section libre sont conformés et/ou cette arête est mobile au-dessus de la sortie d'écoulement de façon que le centre de gravité de la surface de la section libre se déplace vers l'extérieur et/ou inversement au sens de rotation en fonction de l'augmentation de cette section.
  22. Epandeur centrifuge selon l'une quelconque des revendications 1 à 21, caractérisé en ce que le disque d'épandage en lisière (66) présente pour chaque ailette (67) au moins deux logements (77,78) disposés décalés radialement, dont l'un (77) est situé à proximité de l'axe, l'autre (78) éloigné de l'axe et dont l'un permet le réglage de l'ailette dans différentes positions.
  23. Epandeur centrifuge selon l'une quelconque des revendications 1 à 22, caractérisé en ce que l'un (78) des logements présente des positions prédéterminées pour le réglage de l'ailette (67) dans différentes positions.
  24. Epandeur centrifuge selon l'une quelconque des revendications 1 à 23, caractérisé en ce que les logements sont conformés en ouvertures (77,78) dans le disque d'épandage en lisière (66) et en ce que les ailettes (67) présentent des tenons venant s'engager à fixation dans les ouvertures sur la face inférieure du disque d'épandage en lisière.
  25. Epandeur centrifuge selon l'une quelconque des revendications 1 à 24, caractérisé en ce que le logement proche de l'axe est constitué d'une seule ouverture (77), le logement éloigné de l'axe étant constitué de plusieurs ouvertures disposées circulairement autour du logement proche de l'axe.
EP90113896A 1989-07-22 1990-07-20 Distributeur centrifuge de matériaux granulaires, notamment d'engrais Revoked EP0410312B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3924331A DE3924331A1 (de) 1989-07-22 1989-07-22 Schleuderstreuer fuer rieselfaehiges streugut, insbesondere duenger
DE3924331 1989-07-22

Publications (2)

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EP0410312A1 EP0410312A1 (fr) 1991-01-30
EP0410312B1 true EP0410312B1 (fr) 1995-09-27

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EP90113896A Revoked EP0410312B1 (fr) 1989-07-22 1990-07-20 Distributeur centrifuge de matériaux granulaires, notamment d'engrais

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EP (1) EP0410312B1 (fr)
DE (2) DE3924331A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0613613A1 (fr) * 1993-02-27 1994-09-07 Amazonen-Werke H. Dreyer GmbH & Co. KG Epandeur centrifuge
DE19856926C2 (de) * 1997-12-18 2003-06-18 Rauch Landmaschfab Gmbh Verfahren zum Verteilen von Streugut, insbesondere Düngemitteln
DE19929356C2 (de) * 1998-07-09 2003-10-09 Rauch Landmaschfab Gmbh Schleuderstreuer
DE102005015236A1 (de) * 2005-04-02 2006-10-05 Rauch Landmaschinenfabrik Gmbh Zweischeibenstreuer für Streugut, insbesondere Dünger, Salz oder dergleichen
DE102009009280A1 (de) * 2009-02-17 2010-08-19 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Schleuderstreuer
DE102009026344A1 (de) * 2009-08-07 2011-02-10 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Zweischeibenstreuer
EP2689649B1 (fr) 2012-07-26 2018-03-21 Rauch Landmaschinenfabrik Gmbh Procédé pour la distribution uniforme du matériau dans une région de transition entre les voies de passage sur le terrain et la bordure des voies de passage d'un champ, ainsi que épandeur à deux disques pour réaliser un tel procédé
DE102012016574A1 (de) 2012-08-22 2014-02-27 Rauch Landmaschinenfabrik Gmbh Verfahren zur gleichmäßigen Verteilung von Streugut im Übergangsbereich zwischen den Feldfahrgassen und der Grenzfahrgasse eines Feldes sowie Zweischeibenstreuer zur Durchführung eines solchen Verfahrens
CN103947357B (zh) * 2014-04-09 2016-05-04 农业部南京农业机械化研究所 自走式多功能施肥机
DE102015011949A1 (de) 2015-09-18 2017-03-23 Rauch Landmaschinenfabrik Gmbh Verteilmaschine mit wenigstens zwei Verteilerscheiben mit variabler Drehzahl

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109657A (en) * 1961-09-21 1963-11-05 Amazonen Werke Dreyer H Centrifugal spreader
DE3729871A1 (de) * 1987-05-29 1988-12-15 Amazonen Werke Dreyer H Schleuderduengerstreuer
WO1988009609A2 (fr) * 1987-06-04 1988-12-15 Rauch Landmaschinenfabrik Gmbh Repandeur centrifuge d'engrais
DE3804412A1 (de) * 1988-02-12 1989-08-24 Amazonen Werke Dreyer H Schleuderduengerstreuer

Also Published As

Publication number Publication date
EP0410312A1 (fr) 1991-01-30
DE3924331A1 (de) 1991-01-31
DE59009708D1 (de) 1995-11-02

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